Adventure on Kami's Island AA Adventure on Kami's Island Yellow 
Gum-Gum Golden Rifle is a 1-cost Yellow event from Adventure on Kami's Island (OP15-116-v1), AA rarity. Tracked TCGPlayer market price: $77.60 as of 2026-06-18. Power 4000. Effect: [Main] If your Leader has the {Straw Hat Crew} type, trash 1 card from the top of your Life cards. Then, add up to 1 card from the top of your deck to the top of your Life cards and trash 1 card from your hand.[Counter] Your Leader gains +4000 power during this battle. Sky Island/Straw Hat Crew
Effect
[Main] If your Leader has the {Straw Hat Crew} type, trash 1 card from the top of your Life cards. Then, add up to 1 card from the top of your deck to the top of your Life cards and trash 1 card from your hand.[Counter] Your Leader gains +4000 power during this battle. Sky Island/Straw Hat Crew
